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Gemtype Color Shape Weight Size Date Clarity Price Origin
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ID: 3602329 pcs
1.94ctw Sapphire
3.68 x 3.62 x 2.10mm
USD 90.54
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ID: 37539110 pcs
2.16ctw Sapphire
3.70 x 3.65 x 2.24mm
USD 64.15
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ID: 4068951 pcs
7.82ct Maw-Sit-Sit
12.09 x 12.08 x 7.22mm
USD 23.46
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ID: 3579276 pcs
1.67ctw Sapphire
3.95 x 3.89 x 2.41mm
USD 78.56
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ID: 4242186 pcs
3.26ctw Rhodolite Garnet
5.13 x 5.04 x 3.35mm
USD 26.08
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ID: 3752915 pcs
1.83ctw Sapphire
4.35 x 4.30 x 2.61mm
USD 54.35
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ID: 3306964 pcs
1.39ctw Sapphire
4.08 x 4.02 x 2.48mm
USD 62.55
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ID: 4300552 pcs
1.22ctw Topaz
5.76 x 5.54 x 3.14mm
USD 6.10
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ID: 3754575 pcs
1.88ctw Sapphire
4.20 x 4.15 x 2.58mm
USD 55.84
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ID: 4374331 pcs
0.68ct Topaz
5.95 x 5.68 x 3.25mm
USD 3.40
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ID: 3576046 pcs
1.51ctw Sapphire
4.13 x 4.02 x 1.96mm
USD 115.23
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ID: 4104944 pcs
1.63ctw Rhodolite Garnet
4.95 x 4.91 x 2.79mm
USD 13.04
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ID: 4178802 pcs
8.02ctw Topaz
9.97 x 9.83 x 6.55mm
USD 56.14
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ID: 37551310 pcs
2.90ctw Sapphire
3.93 x 3.83 x 2.29mm
USD 86.13
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ID: 4175771 pcs
3.70ct Topaz
9.91 x 9.82 x 5.75mm
USD 25.90
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ID: 3693731 pcs
3.43ct Fire Opal
13.22 x 10.60 x 6.30mm
USD 111.23
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ID: 3742325 pcs
2.76ctw Sapphire
5.23 x 5.11 x 2.72mm
USD 81.83
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ID: 4242736 pcs
3.32ctw Rhodolite Garnet
5.19 x 5.13 x 3.10mm
USD 26.56
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ID: 4256251 pcs
0.94ct Spessartite Garnet
6.57 x 5.24 x 3.77mm
USD 23.50
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ID: 4222911 pcs
1.18ct Apatite
7.43 x 6.82 x 3.99mm
USD 50.43
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ID: 37550610 pcs
2.37ctw Sapphire
3.65 x 3.60 x 2.24mm
USD 70.39
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Trillion Shaped Gems
When it comes to gemstones, shape and cut are are often used interchangeably. The reason is because the difference between the two isn't always obvious. Shape refers to the overall outline of a stone, while 'cut' refers the actual style, process or technique used to work the rough into finished gemstone pieces. Historically, a trilliant gem exhibits the basic trilliant design, featuring 43 facets cut into a triangular shape gemstone that has been worked into 1:1 ratio and cut with 43 facets. The 43 facets are based on the 'brilliant-cut' in order to maximize 'brilliance'. Like other brilliant cuts, the equilateral form of a well-cut trilliant gem should return a substantial degree of light and color to the eye. The trillion cutting style was originally introduced by the Asscher brothers (Asscher-cut) and was trademarked in 1962 by Henry Meyer Diamond Company of New York. Since the expiration of their 'trillion' patent, the term can be used to refer to all triangular shaped gems, even those which are not faceted.

Many trillions today are step-cut, scissor-cut, plain-cut, mixed-cut with undulating surfaces, and trillion gemstones are even cut en cabochon, featuring a flat bottom with a low or high dome depending on the type of gem. As long as the gemstone has a face-up outline or shape which resembles a triangle, then it can be described as a trillion-shaped gemstone. Gemstones like zircon, spinel, diamond, aquamarine, beryl and white sapphire are often cut as trillions to maximize brilliance, while darker gemstones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst are given a trilliant cut in order to lighten and brighten color (rather than focusing on brilliance). Since most diamond-cut styles are modified for colored stones, many colored stone dealers use alternative terms that refer to shape rather than cut-style.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart